Home / 139,231.39-192,134.18-75,567.82

Finding the Fourth Proportional to 139,231.39, 192,134.18 and 75,567.82

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Solution

The fourth proportional to 139,231.39, 192,134.18 and 75,567.82 is: 104,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,231.39 : 192,134.18 = 75,567.82 : x
  2. Step 2: Convert to fraction form
    139,231.39/192,134.18 = 75,567.82/x
  3. Step 3: Cross multiply
    139,231.39x = 192,134.18 × 75,567.82
  4. Step 4: Simplify right side
    139,231.39x = 14,519,161,130.09
  5. Step 5: Solve for x
    x = 14,519,161,130.09/139,231.39
  6. Step 6: Final answer
    x = 104,280.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.